Meet our team
Eric Diaz - Founder and Director
Formerly Davis Cup Player, 2 NCAA Final Four Team Appearances, 3 Top-five National Team Rankings Founder and director of Tier1-IBG tennis Academy. Coach of Alex Michelson and Learner Tien.
Jason Leavitt - Founder and Director
Former US Tennis Federation National Coach, Former ATP coach of Jason Jung ( career high of ATP 118),Former WTA coach of Ashley Kratzer (WTA 117) , Founder and director of Tier1-IBG Academy. Coach of Learner Tien and Alex Michelson.
Adam Clauson - Head Coach
A high-performance development coach with over 18 years’ experience. Adam has worked with some of the top juniors in the country for some of the most successful academies in the U.S.
Adam was a development coach with Northwest High Performance Tennis center (A USTA High Performance training center) for 11 years.
Steven Shi - Founder
Tennis Promoter and Investor
Eliot Teltscher - Senior Coach Consultant
Former U.S. National Team Coach, Personal Coach for Pete Sampras and other former ATP & WTA ranked top-20 players. Former USTA Director of High-Performance-Tennis, Formerly Ranked 6 thru 15 for over 5 years on ATP Tour, Winner of 10 Grand Prix Titles and Winner of French Open mixed doubles.
Rodney Marshall
Former National Team Fitness Coach
Worked with: Taylor Fritz, John Isner, Marty Fish, Alex Michelsen .
Johnny Chang
James Liang
About Our Coaching Team
Introducing our High Performance Tennis Coaching Team, a dedicated group of elite professionals committed to developing the full potential of every athlete. Our team brings a diverse range of experiences from the highest levels of the sport, including former ATP and WTA players, renowned fitness experts, and tactical strategists. Each coach is selected for their expertise in specific areas of tennis, ensuring a comprehensive approach to training, mental toughness, and strategic play. We focus on personalized coaching, tailored to fit the unique strengths and needs of each player, aiming to optimize performance both on and off the court. Our goal is not only to improve skills and techniques but also to instill a lifelong passion for the game, cultivating resilience, discipline, and sportsmanship. Join us to elevate your game to championship levels under the guidance of our top-tier coaching team.
Welcome to Tier1-IBG, a high-performance Tennis academy located in the United States. Our mission is to provide top-notch training and coaching to aspiring tennis players of all levels.
With a team of experienced coaches and state-of-the-art facilities, we are dedicated to helping our students reach their full potential and achieve success both on and off the court. Join us and take your game to the next level!
Elevate Your Tennis Skills
Join our elite training programs at Tier1-IBG and learn from top professionals. Perfect your game, whether beginner or advanced, in a supportive and competitive environment.